Alfa Tipo 33 SC 12 Turbo Prova

As a successor of the 33 TT 12 1976 appeared the 33 SC 12, SC referring for scatolato, a boxed chassis. The 3.0 litre flat-12 engine developed 520 bhp. With this car Alfa Romeo won the sports car world championship in 1977. The SC 12 won every race that season, winning drivers were: Arturo Merzario, Jean-Pierre Jarier and Vittorio Brambilla. On the Salzburg ring the car reached an average speed of 203.82 km/h (126.6 mph). In that same race Alfa tested the 2134 cc turbocharged SC 12 producing 640 bhp. Arturo Merzario finished second with that car. The SC 12 Turbo was Alfa's first twin turbocharged V12-engine. Both cylinder rows were fed with its own turbocharger. The flat-12 engine was later used on the Brabham-Alfa BT45, BT46 and Alfa Romeo 177 Formula 1 cars.

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